Home / 9,319.90-12,861.75-5,071.27

Finding the Fourth Proportional to 9,319.90, 12,861.75 and 5,071.27

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Solution

The fourth proportional to 9,319.90, 12,861.75 and 5,071.27 is: 6,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.90 : 12,861.75 = 5,071.27 : x
  2. Step 2: Convert to fraction form
    9,319.90/12,861.75 = 5,071.27/x
  3. Step 3: Cross multiply
    9,319.90x = 12,861.75 × 5,071.27
  4. Step 4: Simplify right side
    9,319.90x = 65,225,406.92
  5. Step 5: Solve for x
    x = 65,225,406.92/9,319.90
  6. Step 6: Final answer
    x = 6,998.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.